The DREAMS Subjects Database

Stéphanie DEVUYST
Université de Mons
Faculté Polytechnique de Mons - TCTS Lab
31, Boulevard Dolez
B-7000 Mons (Belgium)
ph : +32 (65) 37.47.20
fax: +32 (65) 37.47.29

Introduction Description Format Download More


This Subjects database was collected during the DREAMS project, to tune, train and test our automatic sleep stages classification algorithms.

It consist of 20 whole-night PSG recordings coming from healthy subjects, annoted in sleep stages according to both the Rechtschaffen and Kales (R&K) criteria and the new standard of the American Academy of Sleep Medicine (AASM).

In order to facilitate future research and performance comparision, we decided to publish these data on Internet. Be simply aware that this DREAMS Subjects Database of University of MONS - TCTS Laboratory (Stéphanie Devuyst, Thierry Dutoit) and Université Libre de Bruxelles - CHU de Charleroi Sleep Laboratory (Myriam Kerkhofs) is under terms of the Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0) License. Each use of this database and/or its content must be attributed to University of MONS - TCTS Laboratory (Stéphanie Devuyst, Thierry Dutoit) and Université Libre de Bruxelles - CHU de Charleroi Sleep Laboratory (Myriam Kerkhofs). Any other additional authorisations may be asked to

If you are interested in adding your own visual or automatic annotations, please contact me:

Database description

Data collected were acquired in a sleep laboratory of a belgium hospital using a digital 32-channel polygraph (BrainnetTM System of MEDATEC, Brussels, Belgium). They consist of 20 whole-night polysomnographic recordings, coming from 20 healthy subjects. At least two EOG channels (P8-A1, P18-A1), three EEG channels (CZ-A1 or C3-A1, FP1-A1 and O1-A1) and one submental EMG channel were recorded. The standard European Data Format (EDF) was used for storing. The sampling frequency was 200Hz.

These recordings have been specifically selected for their clarity (i.e. that they contain few artifacts) and come from persons, free of any medication, volunteers in other research projects, conducted in the sleep lab.

The sleep stage classification according to the Rechtschaffen and Kales (R&K) criteria has been made ​​on the basis of epochs 20 seconds, while the scoring according to the American Academy of Sleep Medicine (AASM) criteria has been completed (nearly two years later) based on epochs of 30 seconds. Both annotations were produced visually by a single expert of the sleep laboratory.

Name Sampling frequency Age Sex Recording duration (
subject1 200Hz 23 Woman 08:00:40
subject2 200Hz 47 Woman 08:12:30
subject3 200Hz 24 Woman 08:24:20
subject4 200Hz 48 Woman 08:46:30
subject5 200Hz 46 Woman 08:51:30
subject6 200Hz 65 Woman 08:18:40
subject7 200Hz 45 Woman 08:26:00
subject8 200Hz 22 Woman 08:05:00
subject9 200Hz 21 Woman 09:18:40
subject10 200Hz 20 Woman 08:36:20
subject11 200Hz 30 Woman 08:24:10
subject12 200Hz 54 Woman 08:00:40
subject13 200Hz 23 Woman 09:15:40
subject14 200Hz 57 Woman 08:22:10
subject15 200Hz 20 Woman 07:00:00
subject16 200Hz 27 Woman 08:03:50
subject17 200Hz 23 Man 08:18:30
subject18 200Hz 27 Man 08:30:40
subject19 200Hz 27 Man 08:36:50
subject20 200Hz 20 Man 09:32:30

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File format

Thee files are available per subject:

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Database download

You can download each file separately by doing "right-click" and "save target as" on the links below (in the table),
or you can directly download the entire database by clicking on this link: DatabaseSubjects.rar

EDF Hypnogram according to R&K criteria Hypnogram according to AASM criteria
subject1.edf HypnogramR&K_subject1.txt HypnogramAASM_subject1.txt
subject2.edf HypnogramR&K_subject2.txt HypnogramAASM_subject2.txt
subject3.edf HypnogramR&K_subject3.txt HypnogramAASM_subject3.txt
subject4.edf HypnogramR&K_subject4.txt HypnogramAASM_subject4.txt
subject5.edf HypnogramR&K_subject5.txt HypnogramAASM_subject5.txt
subject6.edf HypnogramR&K_subject6.txt HypnogramAASM_subject6.txt
subject7.edf HypnogramR&K_subject7.txt HypnogramAASM_subject7.txt
subject8.edf HypnogramR&K_subject8.txt HypnogramAASM_subject8.txt
subject9.edf HypnogramR&K_subject9.txt HypnogramAASM_subject9.txt
subject10.edf HypnogramR&K_subject10.txt HypnogramAASM_subject10.txt
subject11.edf HypnogramR&K_subject11.txt HypnogramAASM_subject11.txt
subject12.edf HypnogramR&K_subject12.txt HypnogramAASM_subject12.txt
subject13.edf HypnogramR&K_subject13.txt HypnogramAASM_subject13.txt
subject14.edf HypnogramR&K_subject14.txt HypnogramAASM_subject14.txt
subject15.edf HypnogramR&K_subject15.txt HypnogramAASM_subject15.txt
subject16.edf HypnogramR&K_subject16.txt HypnogramAASM_subject16.txt
subject17.edf HypnogramR&K_subject17.txt HypnogramAASM_subject17.txt
subject18.edf HypnogramR&K_subject18.txt HypnogramAASM_subject18.txt
subject19.edf HypnogramR&K_subject19.txt HypnogramAASM_subject19.txt
subject20.edf HypnogramR&K_subject20.txt HypnogramAASM_subject20.txt

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